Restore missing Model State code snippet (#10199)

aspnetcore/mvc/models/validation.md

@@ -4,7 +4,7 @@ author: tdykstra
 description: Learn about model validation in ASP.NET Core MVC.
 ms.author: riande
 ms.custom: mvc
-ms.date: 11/06/2018
+ms.date: 01/04/2019
 uid: mvc/models/validation
 ---
 # Model validation in ASP.NET Core MVC
@@ -78,7 +78,7 @@ Model state represents validation errors in submitted HTML form values.
 
 MVC will continue validating fields until it reaches the maximum number of errors (200 by default). You can configure this number with the following code in `Startup.ConfigureServices`:
 
-[!code-csharp[](validation/sample/Startup.cs?range=27)]
+[!code-csharp[](validation/sample/Startup.cs?name=snippet_MaxModelValidationErrors)]
 
 ## Handle Model State errors
 

aspnetcore/mvc/models/validation/sample/Startup.cs

@@ -11,8 +11,10 @@ namespace MVCMovie
         {
             services.AddSingleton(new MVCMovieContext());
             services.AddSingleton<IUserRepository>(new UserRepository());
+            #region snippet_MaxModelValidationErrors
             services.AddMvc(options => options.MaxModelValidationErrors = 50)
                     .SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
+            #endregion
         }
 
         public void Configure(IApplicationBuilder app)